title: Stability of omega-3 LC-PUFA-rich photoautotrophic microalgal oils compared to commercially available omega-3 LC-PUFA oils.
abstract: Microalgae are the primary producers of omega-3 LC-PUFA, which are known for their health benefits. Their oil may thus be a potential alternative for fish oil. However, oxidative and hydrolytic stability of omega-3 LC-PUFA oils are important parameters. The purpose of this work was therefore to evaluate these parameters in oils from photoautotrophic microalgae (Isochrysis, Phaeodactylum, Nannochloropsis gaditana, and Nannochloropsis sp.) obtained with hexane/isopropanol (HI) and hexane (H) and compare them with commercial omega-3 LC-PUFA oils. When the results of both the primary and secondary oxidation parameters were put together, it was clear that fish, tuna, and heterotrophic microalgae oil are the least oxidatively stable oils, whereas krill oil and the microalgae oils performed better. The microalgal HI oils were shown to be more oxidatively stable than the microalgal H oils. The hydrolytic stability was shown not to be a problem during the storage of any of the oils.
authors.affiliation: KU Leuven Kulak, Research Unit Food and Lipids, Department of Molecular and Microbial Systems Kulak, , Etienne Sabbelaan 53, 8500 Kortrijk, Belgium.
authors.forename: Eline
authors.initials: E
authors.lastname: Ryckebosch
authors.forename: Charlotte
authors.initials: C
authors.lastname: Bruneel
authors.forename: Romina
authors.initials: R
authors.lastname: Termote-Verhalle
authors.forename: Charlotte
authors.initials: C
authors.lastname: Lemahieu
authors.forename: Koenraad
authors.initials: K
authors.lastname: Muylaert
authors.forename: Jim
authors.initials: J
authors.lastname: Van Durme
authors.forename: Koen
authors.initials: K
authors.lastname: Goiris
authors.forename: Imogen
authors.initials: I
authors.lastname: Foubert
mesh_terms: D000818:Animals; D015525:Fatty Acids, Omega-3 / Q000737:chemistry* / Q000191:economics / Q000302:isolation & purification; D005395:Fish Oils / Q000737:chemistry*; D005399:Fishes; D058087:Haptophyta / Q000737:chemistry*; D058086:Microalgae / Q000737:chemistry* / Q000378:metabolism; D010084:Oxidation-Reduction; D052817:Phototrophic Processes; D010938:Plant Oils / Q000737:chemistry* / Q000302:isolation & purification; D058009:Stramenopiles / Q000737:chemistry*
chemical_list: D015525:Fatty Acids, Omega-3; D005395:Fish Oils; D010938:Plant Oils